Construction and sinking of caissons or the like.



PATENTED 001 23, 1906.

D. E. MORAN. CONSTRUCTION AND, SINKING 0F GAISSONS OR THE LIKE.

APPLICATION FILED JUNE 23.1906.

2 SHEETS-SHEET l.

INVENTOR 3 sunk as a unit.

out of levelor out of v STATES O CE.

DAINIIEL E. MORAN, OF M ENDHAM, NEW JERSEY.

consrs ucrlou mb SlNKlNG: OF (#AISSONJS on THE ,LIKE.

5 New Jersey, have invented certain new and useful Im rovements in the Construction and Sinking o .Caissons or the Like, of which the following is a specification.

In my ap lication for patent, 'Serial .No.

IQ 321,845, file June 15, 1906, Ihave described I andclaimed generically the reinforcing of a concrete caisson with metal, preferably form-.-

' ing a continuous connection between the su'-- perimposed load and the subfoundation.

' p The present invention. provides a contruction which is within the broad invention there described, but is substantially different from. the specific embodiment upon which said application isbased. The present case 9 involves also a departure in that steel is introduced in the form of a column which may and preferably does provld e the prmclpal strength, the concrete servm'g, primar ly, as a easmg for the steel'colun'm and as a means for erecting 2 5 the same in the desired position.

The methods ofmtr'oduemg or ere'ctmg the steel column maybe classificdunder two I- heads. First, the column can be embedded in the solid concrete of the pier and the whole,

In this-case the column can extend down through the roof to within a few inches of the level of the cutting edge, and after the caisson has reached itsfmal position wi thesupporting effect of the column can be transmitted tothe-rock subfoundation by a metal underpinning inserted by men inthe working-chamber. In this case the final ad- Lustment of the length of the column would a In the second method it- 4 would be necessary to'leave a vertical opene at the base.

in through. the .body of thecaisson, pening or a special opening eit erthe shaft-o for the purpose. After the caisson has 1 reachedits final position t ecolumn can be lowered to the-rock and the ad iustment 1n length be made at the to his second method has the advantage t at thesteel columns can be exactly located and accurately "plumbed, even'if the caisson goes somewhat posltion, as sometimes ha pens.

- j; eferring'to the embodiments ofthe invention illustrated, Figure 1 is a vertical section t rough' a caisson atthe shaft-opening, the

5 5 caisson being sunk to thedesired depth. Fig. 2

is a similar section a columnerected Specification of Letters Patent, I ipplication flled rm 23,1906. smart. 323.004.

Fig. 5 is .a vertica "The body bod passes a shaft pal su through the shaft, 3 is a similar section showin the o [concrete introduced about t 1e column. Fig. 4 is a horizontal section approximate] on'the line 4 4 in 3.

other method.

The caisson may be'of any suitable sha e, of concrete is represented at A, elow which is theworking chamber B,

-' ".r mwaoeese, race. I v

section, and Fig. 6 a seetion on the line 6 6 in Fig. 5 illustrating ansides C and a cuttingsedge D, and through the The caisson is, usually;

sun to within a short distance of the rec 1 subfoundation F. After s' such a son in the usual way the rock wlll be leveled and a edestal G set up ap roximately'in line i ii af t E. The pedestal with t e center of the sh me be lowered in sections and b0 ted toget er by the men in the workin chamber, if too large to pass through the sha t, or placed inthe chamber prior to sinking and carried. down with the caisson. The column H 1s then erected length by length 'within the shaft, theworkmen filling in behind them with concrete as they withdraw from the chamher and up the shaft: The column may be of any one of agreat variety of designs.- The design and material are not important to this invention. I have shown a composite .col- 'umn made np'of Z -bars, so as to facllltate the entrance of the concrete into contact with all parts of the metal to protect the same from rust. The lining J of the shaft ma be left in place as is usual, or it may be .wit drawn in self and John W. Doty, Serial N 0.309350. '1 Since the column H, of metal, is the principrotect the column,

porting member and the prime funce will generally be of c'om- 9o the manner covered in the application of myig. 4, and may be sunk very rapidly and'at slight expense. It is to be observed, how' ever, that the concrete, though primarily a protector for the metal column, yet'braces the latter considerably against buckling and may even .be arranged to take a part of the load. The shaft-lining J around the column also adds considerably to its resistance to buckling.

. second method of construction is-shown in Figs. Sand 6. In this case a column H is supported the concrete body A and embedded firmly therein at one side of the shaft E. "i The column H' 'may be ve easil provided for by the molding up of t ebo yA of the caisson before sinking in the manner described in an ap lication of myself and John W. Doty, Serial No. 276,767, the length of the column being continually added to in advance of the height. of the concrete. Any

number of columns may be carried in the body of the caisson in this manner. The drawings show only one shaft E and one column H, any remaining portions of the caisson being removed. After the caisson is sunk to the desired depth an suitable underpinning K may be providled for transmitting the sup rtin action of the column to the rock l he co umn is referably ut under a slight initial strain in this way. 'l he shaft E in this case may also be used for an additional column H, as shown, and any number of such shafts may be provided either with or without the liningJ.

It will be observed that according to both methods described the continuous column connecting the superimposed load to the subfoundation is formed after the caisson is sunk, the column being finished in one case at the bottom and in the other case at the top duced through one or more pi es K, which are withdrawn as the filled leve rises.

In my Patents Nos. 830,515 and'830, 516,

the introduction. of metal reinforces in a manner identical with the manner of intro- Though I have described with great particularity of detail certain specific embodi- -base ofsaid column an end. The filling of concrete may be intro- 1 eeavee ments of the invention, yet it is notto be understood therefrom that the invention is restricted to the particular embodiments disclosed. Various modifications thereof in de tail and in the arrangement and combination of the parts may be made by those skilled in the art without departure from the invention.

What I claim is 1. The method which consists in sinking a caisson, and erecting a metal column within said caisson extending continuously from the subfoundation to the top of the caisson, and subsequently inclosing said column in an envelop of concrete.

2. The method which consists in sinking a caisson, and erecting a metal column upon the subfoundation and passing it through the shaft of the caisson,

3. The method which consists in sinking a caisson having a concrete body with'a metal .column embedded therein and projecting into the working chamber, and subsequently inserting a metal under inning between the the subfoundation.

4. The combination with a caisson, of a metal column su ported on .the subfoundation and exten ing upward through the caisson. dated September 11, 1906, I have described 3 In witness whereof I have hereunto si ned my name in the presence of two subscn ing witnesses,

DANIEL E. MORAN.

Witnesses:

DoMmso A. USINA, Tnnononn T. SNELL. 

